| Castrovillari to Oerlinghausen | 913.13 mi (1,469.55 km) |
| Castrovillari to Oestrich-Winkel | 808.85 mi (1,301.71 km) |
| Castrovillari to Offenburg | 723.77 mi (1,164.79 km) |
| Castrovillari to Oftersheim | 758.13 mi (1,220.09 km) |
| Castrovillari to Ohrdruf | 805.28 mi (1,295.97 km) |
| Castrovillari to Ohringen | 726.84 mi (1,169.74 km) |
| Castrovillari to Olbernhau | 762.37 mi (1,226.91 km) |
| Castrovillari to Olching | 627.68 mi (1,010.15 km) |
| Castrovillari to Oldenburg | 994.65 mi (1,600.74 km) |
| Castrovillari to Oldenburg in Holstein | 1,030.78 mi (1,658.88 km) |
| Castrovillari to Olfen | 923.97 mi (1,486.98 km) |
| Castrovillari to Olpe | 872.47 mi (1,404.10 km) |
| Castrovillari to Olsberg | 878.75 mi (1,414.21 km) |
| Castrovillari to Oranienburg | 904.83 mi (1,456.19 km) |
| Castrovillari to Ortenberg | 806.39 mi (1,297.76 km) |
